WO2018024152A1

WO2018024152A1 - Method and equipment for wireless communication

Info

Publication number: WO2018024152A1
Application number: PCT/CN2017/094639
Authority: WO
Inventors: 张晓博
Original assignee: 上海朗帛通信技术有限公司
Priority date: 2016-08-05
Filing date: 2017-07-27
Publication date: 2018-02-08
Also published as: CN107690160B; US20190159221A1; US20230171760A1; CN109194456A; US11818704B2; US11337232B2; CN109194456B; US20220232578A1; US20200305172A1; US10779302B2; CN107690160A; US11601956B2

Abstract

Disclosed in the present invention are a method and equipment for wireless communication. As an embodiment, firstly, a UE receiving a first signaling; then, receiving a second signaling; next, receiving a first wireless signal on a target time-frequency resource. The target time-frequency resource comprises time-frequency resources in a second time-frequency resource other than a first time-frequency resource; the second signaling is used to determine whether the target time-frequency resource comprises the first time-frequency resource and the second time-frequency resource. The target time-frequency resource belongs to a first time interval in a time domain, and the time length of the first time interval is less than 1 millisecond. The first signaling is used to determine a first resource pool, wherein the first resource pool comprises the first time-frequency resource. The first resource pool is reserved for downlink physical layer signaling. The present invention effectively utilizes a time-frequency resource which is left over after transmitting control information in a time interval of less than 1 millisecond, thereby improving resource utilization rate.

Description

Method and device in wireless communication

Technical field

The present application relates to transmission schemes in wireless communication systems, and more particularly to methods and apparatus for low latency transmission based on LTE-Long Term Evolution.

Background technique

In the 3rd Generation Partnership Project (3rd Generation Partner Project) RAN (Radio Access Network) #63 plenary meeting, it was decided to study the problem of reducing the delay of the LTE network. The delay of the LTE network includes air interface delay, signal processing delay, and transmission delay between nodes. With the upgrade of the wireless access network and the core network, the transmission delay is effectively reduced. With the application of new semiconductors with higher processing speeds, signal processing delays are significantly reduced. At the RAN#72 plenary meeting, based on previous research results, 3GPP decided to standardize the shortened TTI (Transmission Time Interval) and signal processing delay.

In an existing LTE system, one TTI or a subframe or a Physical Resource Block (PB) corresponds in time to 1 ms (milli-second). In order to reduce the network delay, 3GPP decides to standardize a shorter TTI, for example, when introducing two OFDM (Orthogonal Frequency Division Multiplexing) symbols or one in the LTE FDD (Frequency Division Duplexing) system. The downlink TTI length of the slot (TS, Timeslot), the uplink TTI length of 2 OFDM symbols, 4 OFDM symbols, or 1 slot. The TTI length of one slot is introduced in the downlink on the LTE TDD (Time Division Duplexing) system.

The resource scheduling in the LTE is performed by DCI (Downlink Control Information), and the DCI is transmitted through a PDCCH (Physical Downlink Control Channel) or an EPDCCH (Enhanced PDCCH). In order to support short TTI, the 3GPP decides to introduce a downlink control channel (temporarily named sPDCCH, short PDCCH) transmitted in a short TTI, and the sPDCCH transmits scheduling information or other control information of all uplink and downlink in all or part of the sTTI.

Summary of the invention

In a short TTI, the base station may schedule multiple user equipments (UE, User Equipment) at the same time, but each scheduled UE can only know the time-frequency resources occupied by its own control information and cannot obtain other UEs. Time-frequency resource information occupied by the control information. If the downlink data transmission of one UE is prevented from colliding with the time-frequency resources occupied by the control information of other UEs, the downlink data of all UEs is simply limited to be transmitted to a specific time-frequency resource region, which may result in only When fewer UEs are scheduled, the time-frequency resources of the idle control region are still not able to be allocated to the scheduled UE for downlink data transmission, which causes resource waste and degradation of spectrum efficiency. This problem is particularly noticeable in the case of short TTI due to the limited time-frequency resources of short TTI.

The present application provides a solution to the problem that resources of the idle control information area cannot be effectively used. It should be noted that, in the case of no conflict, the features in the embodiments and embodiments in the UE (User Equipment) of the present application can be applied to the base station, and vice versa. Further, the features of the embodiments and the embodiments of the present application may be combined with each other arbitrarily without conflict.

The present application discloses a method for use in a UE with low latency, including:

Receiving first signaling;

Receiving second signaling;

Receiving a first wireless signal on a target time-frequency resource;

The first time-frequency resource and the target time-frequency resource are orthogonal, or the target time-frequency resource includes the first time-frequency resource; and the second time-frequency resource is other than the first time-frequency resource. The time-frequency resource belongs to the target time-frequency resource, and the second signaling is used to determine the first time-frequency resource and the second time-frequency resource; the target time-frequency resource belongs to the first time in the time domain. An interval, the length of time of the first time interval is less than 1 millisecond; the first wireless signal carries a first bit block, the first bit block includes a positive integer number of bits, and the first bit block is at the target Transmitting on a frequency resource; the first signaling is used to determine a first resource pool, the first resource pool includes the first time-frequency resource, and the first resource pool is reserved for downlink physical layer signaling .

As an embodiment, the first signaling is high layer signaling, and the second signaling is physical layer signaling.

As an embodiment, the first signaling is physical layer signaling, and the second signaling is physical layer signaling.

As an embodiment, the first time-frequency resource is used to transmit at least at least L signaling. First, the L is a positive integer, and the L signalings include the second signaling.

In one embodiment, the second signaling indicates the first time-frequency resource from the first resource pool.

In an embodiment, the second time-frequency resource and the first time-frequency resource partially overlap.

As an embodiment, the second time-frequency resource and the first time-frequency resource are orthogonal (ie, do not overlap at all).

In an embodiment, the second time-frequency resource includes the first time-frequency resource.

As an embodiment, the first resource pool is reserved for the downlink physical layer signaling, where the first resource pool is preferentially occupied by the former in the downlink physical layer signaling and the downlink physical layer data. .

As an embodiment, the first resource pool is reserved for downlink physical layer signaling, that is, the first resource pool can only be occupied by the downlink physical layer signaling.

As an embodiment, the second signaling may dynamically indicate the first time-frequency resource, so as to ensure that the target time-frequency resource can effectively occupy the remaining time-frequency resources of the first time-frequency resource, and improve resources. Utilization and spectral efficiency of the system.

As an embodiment, the second signaling is DCI (Downlink Control Information).

As a sub-embodiment of the above embodiment, UE-specific indication can be achieved by DCI, which maximizes indication flexibility.

As an embodiment, the second signaling includes a CFI (Control Format Indicator).

As an embodiment, the second signaling is transmitted by using a first physical channel, where the first physical channel is used to indicate a time-frequency resource occupied by the DCI in the first time interval.

As an embodiment, the second signaling is transmitted at the first time interval.

As an embodiment, the second signaling includes scheduling information of the first wireless signal, where the scheduling information includes {RA (Resource Allocation, Resource Allocation), MCS (Modulation and Coding Scheme), and NDI (New Data Indicator, new data indication), at least one of RV (Redundancy Version, Redundancy Version), HARQ Process Number}.

In an embodiment, the target time-frequency resource is orthogonal to the first time-frequency resource, The orthogonality refers to that there is no time or frequency belonging to the target time-frequency resource and the first time-frequency resource.

As an embodiment, the target time-frequency resource is continuous in the frequency domain.

As an embodiment, the target time-frequency resources are discrete in the frequency domain.

As an embodiment, the target time-frequency resource is continuous in the time domain.

As an embodiment, the target time-frequency resource is discrete in the time domain.

As an embodiment, the target time-frequency resource includes R subcarriers in a frequency domain, and the R is a positive integer. As a sub-embodiment, the R is a multiple of 12. As another sub-embodiment, the number of time domain OFDM symbols occupied by any two of the R subcarriers is the same. As another sub-embodiment, the number of time domain OFDM symbols occupied by two subcarriers in the R subcarriers is different.

As a sub-embodiment of the foregoing embodiment, when the number of time domain OFDM symbols occupied by two subcarriers in the R subcarriers is different, the allocation of the target time-frequency resource is most flexible.

As an embodiment, the first time-frequency resource is continuous in the frequency domain.

As an embodiment, the first time-frequency resource is discrete in the frequency domain.

As an embodiment, the first time-frequency resource is continuous in the time domain.

As an embodiment, the first time-frequency resource is discrete in the time domain.

As an embodiment, the first time-frequency resource includes H subcarriers in a frequency domain, and the H is a positive integer. As a sub-embodiment, the H is a multiple of 12. As another sub-embodiment, the number of time domain OFDM symbols occupied by any two of the H subcarriers is the same. As another sub-embodiment, the number of time domain OFDM symbols occupied by two subcarriers in the H subcarriers is different.

In an embodiment, the first time-frequency resource belongs to the first time interval in a time domain.

In an embodiment, the time domain resource of the first time-frequency resource is part of the first time interval.

As an embodiment, the first time interval includes Q time domain contiguous OFDM symbols, the OFDM symbols include a cyclic prefix, and the R is a positive integer. As a sub-embodiment, the R is one of {2, 4, 7}.

In an embodiment, the time domain resource of the target time-frequency resource is the first time interval. Part of it.

As an embodiment, the target time-frequency resource is part of the second time-frequency resource.

As an embodiment, the target time-frequency resource is the same as the second time-frequency resource.

As an embodiment, the second time-frequency resource is continuous in the frequency domain.

As an embodiment, the second time-frequency resource is discrete in the frequency domain.

As an embodiment, the second time-frequency resource is continuous in the time domain.

As an embodiment, the second time-frequency resource is discrete in the time domain.

As an embodiment, the second time-frequency resource includes J subcarriers in a frequency domain, and the J is a positive integer. As a sub-embodiment, the J is a multiple of 12. As another sub-embodiment, the number of time domain OFDM symbols occupied by any two of the J subcarriers is the same. As another sub-embodiment, the number of time domain OFDM symbols occupied by two subcarriers in the J subcarriers is different.

As an embodiment, the transport channel corresponding to the first radio signal is a downlink shared channel (DL-SCH, Downlink Shared Channel) mapped in the first time interval.

In an embodiment, the first wireless signal is that the first bit block is sequentially subjected to channel coding, a modulation mapper, a layer mapper, a precoding, and a resource. Resource Element Mapper, the output after OFDM signal generation. As a sub-embodiment, the first bit block includes one or more TB (Transport Block). As a sub-embodiment, the first bit block is a part of a TB (Transport Block).

As an embodiment, by using the configuration of the first resource pool, the signaling header overhead (Overhead) indicating the first time-frequency resource can be effectively reduced while ensuring the flexibility of the first time-frequency resource allocation.

As an embodiment, the first signaling is high layer signaling.

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the first signaling is physical layer signaling, and the first signaling includes scheduling information of the first wireless signal, where the scheduling information includes {RA, MCS, RV, NDI, HARQ processes. At least one of the number}.

As an embodiment, the first signaling is a DCI.

As an embodiment, the first resource pool is contiguous in the frequency domain.

As an embodiment, the first resource pool is discrete in the frequency domain.

According to an aspect of the present application, the method is characterized in that the second signaling indicates whether the target time-frequency resource includes the first time-frequency resource, and the first time-frequency resource is the first resource pool. And a common part of the second time-frequency resource.

In one embodiment, the target time-frequency resource is orthogonal to the first time-frequency resource, where the orthogonal means that there is no time or frequency belonging to the target time-frequency resource and the first Time-frequency resources.

In one embodiment, the target time-frequency resource includes the first time-frequency resource.

As an embodiment, the first time-frequency resource is an empty set.

As an embodiment, the first time-frequency resource includes at least one RU (Resource Unit). The RU occupies one subcarrier in the frequency domain and occupies the duration of one OFDM symbol in the time domain.

According to an aspect of the present application, the above method is characterized in that the second signaling is used to determine a first time-frequency pattern from a P time-frequency pattern, the P being a positive integer, the first time-frequency pattern A time-frequency location distribution of the first time-frequency resource in the first resource pool; the P-type time-frequency pattern is predefined, or the P-type time-frequency pattern is configurable.

As an embodiment, the introduction of the P time-frequency pattern can effectively reduce the signaling header overhead required to indicate the first time-frequency resource.

As an embodiment, the P time-frequency patterns are implicitly predefined.

As an embodiment, the P time-frequency patterns are dominantly predefined.

As an embodiment, the P time-frequency pattern is associated with the first resource pool.

As an embodiment, the P time-frequency pattern belongs to the first resource pool.

As an embodiment, the P time-frequency pattern is configured by the first signaling.

As an embodiment, the P time-frequency patterns are configured by physical layer signaling.

As an embodiment, the P time-frequency pattern is configured by RRC (Radio Resource Control) signaling.

As an embodiment, the P time-frequency patterns correspond to P frequency domain offsets, and the frequency domain start points of the P frequency domain offsets are predefined.

According to an aspect of the present application, the above method is characterized by further comprising:

Receiving third signaling;

The third signaling is used to determine a frequency domain resource occupied by the first time interval. The target time-frequency resource, the first time-frequency resource, and the second time-frequency resource, in the frequency domain, belong to the frequency domain resource occupied by the first time interval.

As an embodiment, the third signaling is high layer signaling.

As an embodiment, the third signaling is physical layer signaling.

As an embodiment, the third signaling is physical layer signaling, and the third signaling includes scheduling information of the first wireless signal, where the scheduling information includes {RA, MCS, RV, NDI, HARQ processes. At least one of the number}.

As an embodiment, the third signaling is DCI.

As an embodiment, the frequency domain resources occupied by the first time interval are continuous in the frequency domain.

As an embodiment, the frequency domain resources occupied by the first time interval are discrete in the frequency domain.

As an embodiment, the frequency domain resource occupied by the first time interval includes W subcarriers in a frequency domain, and the W is a positive integer. As a sub-embodiment, the W is a multiple of 12.

The present application discloses a method for use in a base station with low latency, including:

- Send second signaling

- Send the first signaling

- transmitting the first wireless signal on the target time-frequency resource;

According to an aspect of the present application, the method is characterized in that the second signaling is used to determine a first time-frequency pattern from a P time-frequency pattern, the P being a positive integer, the first time-frequency diagram The time-frequency position distribution of the first time-frequency resource in the first resource pool; the P-type time-frequency pattern is predefined, or the P-type time-frequency pattern is configurable.

- transmitting third signaling;

The third signaling is used to determine a frequency domain resource occupied by the first time interval, where the target time-frequency resource, the first time-frequency resource, and the second time-frequency resource are in a frequency domain. All belong to the frequency domain resource occupied by the first time interval.

- determining a second block of bits;

The second bit block is generated by channel coding by the first bit block, and the second bit block includes a positive integer number of bits.

In one embodiment, the first wireless signal is the second bit block sequentially passes through a modulation mapper, a layer mapper, a precoding, and a resource element mapper. ), the output after the OFDM signal generation.

As an embodiment, the first bit block generates a second bit block by channel coding rate matching (Rate Matching) to the target time-frequency resource.

As a sub-embodiment of the foregoing embodiment, the first signal rate may be flexibly adjusted according to the occupancy of the first time-frequency resource by using the rate matching.

As an embodiment, the first bit block is subjected to channel coding puncturing to the target time-frequency resource to generate a second bit block.

As a sub-embodiment of the above embodiment, the code rate of the first signal can be maintained by the puncturing, and the transmission of control information in the first time-frequency resource is ensured.

As an embodiment, the channel coding is Convolution Code

As an embodiment, the channel coding is Turbo coding.

The present application discloses a user equipment that is used for low latency, including:

- a first receiving module, receiving the first signaling;

a second receiving module receiving the second signaling;

a third receiving module, receiving the first wireless signal on the target time-frequency resource;

The first time-frequency resource and the target time-frequency resource are orthogonal, or the target time-frequency resource includes the first time-frequency resource; and the second time-frequency resource is other than the first time-frequency resource. Time The frequency resource belongs to the target time-frequency resource, and the second signaling is used to determine the first time-frequency resource and the second time-frequency resource; the target time-frequency resource belongs to a first time interval in a time domain. The first time interval has a length of time less than 1 millisecond; the first wireless signal carries a first bit block, the first bit block includes a positive integer number of bits, and the first bit block is at the target time frequency Transmitting on the resource; the first signaling is used to determine a first resource pool, the first resource pool includes the first time-frequency resource, and the first resource pool is reserved for downlink physical layer signaling.

According to an aspect of the present application, the user equipment is characterized in that the second signaling indicates whether the target time-frequency resource includes the first time-frequency resource, and the first time-frequency resource is the first resource a pool and a common portion of the second time-frequency resource.

According to an aspect of the application, the user equipment is characterized in that the second signaling is used to determine a first time-frequency pattern from a P time-frequency pattern, the P being a positive integer, the first time-frequency The pattern is a time-frequency location distribution of the first time-frequency resource in the first resource pool; the P-type time-frequency pattern is predefined, or the P-type time-frequency pattern is configurable.

According to an aspect of the present application, the user equipment is characterized in that the first receiving module further receives third signaling, where the third signaling is used to determine a frequency domain resource occupied by the first time interval; The target time-frequency resource, the first time-frequency resource, and the second time-frequency resource are all in the frequency domain and belong to the frequency domain resource occupied by the first time interval.

The present application discloses a base station device that is used for low latency, including:

- a first sending module, transmitting the first signaling;

a second transmitting module that transmits the second signaling;

a third transmitting module, transmitting the first wireless signal on the target time-frequency resource;

According to an aspect of the present application, the foregoing base station device is characterized in that the second signaling indicates whether the target time-frequency resource includes the first time-frequency resource, and the first time-frequency resource is Describe a common portion of the first resource pool and the second time-frequency resource.

According to an aspect of the present application, the base station device is characterized in that the second signaling is used to determine a first time-frequency pattern from a P time-frequency pattern, the P being a positive integer, the first time-frequency The pattern is a time-frequency location distribution of the first time-frequency resource in the first resource pool; the P-type time-frequency pattern is predefined, or the P-type time-frequency pattern is configurable.

According to an aspect of the present application, the foregoing base station device is characterized in that the first sending module further receives third signaling, where the third signaling is used to determine a frequency domain resource occupied by the first time interval, The target time-frequency resource, the first time-frequency resource, and the second time-frequency resource are all in the frequency domain and belong to the frequency domain resource occupied by the first time interval.

According to an aspect of the present application, the base station device is characterized in that the third transmitting module further determines a second bit block, the second bit block is generated by channel coding by the first bit block, and the second A block of bits includes a positive integer number of bits.

As an embodiment, the present application has the following technical advantages over the prior art:

- In accordance with the time-frequency resource used for transmitting the DCI in the sTTI, the UE that is scheduled in the sTTI can be used to transmit the downlink data by dynamic signaling to ensure that the downlink data transmission can effectively occupy the DCI in the sTTI. The remaining time-frequency resources improve resource utilization and the spectrum efficiency of the system.

- reducing the signaling header overhead indicating the time-frequency resources occupied by transmitting DCI in the sTTI;

- Flexible allocation of resources for downstream data transmission.

DRAWINGS

Other features, objects, and advantages of the present application will become more apparent from the detailed description of the accompanying drawings.

1 shows a flow chart of first signaling, second signaling, and transmission of a first wireless signal in accordance with one embodiment of the present application;

2 shows a schematic diagram of a network architecture in accordance with one embodiment of the present application;

3 shows a schematic diagram of a radio protocol architecture of a user plane and a control plane in accordance with one embodiment of the present application;

4 shows an illustration of a base station device and a given user device in accordance with one embodiment of the present application. intention;

FIG. 5 is a flowchart of downlink transmission of a wireless signal according to an embodiment of the present application; FIG.

FIG. 6 is a schematic diagram of a first time-frequency resource according to an embodiment of the present application; FIG.

FIG. 7 is a schematic diagram showing a relationship between a target time-frequency resource and a first time-frequency resource according to an embodiment of the present application; FIG.

FIG. 8 is a schematic diagram of a target time-frequency resource and a second frequency domain resource according to an embodiment of the present application; FIG.

FIG. 9 is a schematic diagram showing a relationship between a first resource pool and a first time-frequency resource according to an embodiment of the present application;

FIG. 10 is a block diagram showing the structure of a processing device in a User Equipment (UE) according to an embodiment of the present application;

11 is a block diagram showing the structure of a processing device in a base station according to an embodiment of the present application;

detailed description

The technical solutions of the present application are further described in detail below with reference to the accompanying drawings. It should be noted that the features in the embodiments and the embodiments of the present application may be combined with each other without conflict.

Example 1

Embodiment 1 illustrates a flow chart of first signaling, second signaling, and transmission of a first wireless signal, as shown in FIG. 1, in accordance with one embodiment of the present application. In Figure 1, each box represents a step. In Embodiment 1, the user equipment in this application first receives the first signaling, then receives the second signaling, and then receives the first wireless signal; wherein, the first time-frequency resource and the target time-frequency resource are orthogonal Or the target time-frequency resource includes the first time-frequency resource; the time-frequency resource in the second time-frequency resource and outside the first time-frequency resource belongs to the target time-frequency resource, and the second signaling Used to determine the first time-frequency resource and the second time-frequency resource; the target time-frequency resource belongs to a first time interval in a time domain, and the time length of the first time interval is less than 1 millisecond; The first wireless signal carries a first bit block, the first bit block includes a positive integer number of bits, the first bit block is transmitted on the target time-frequency resource; the first signaling is used to determine the first a resource pool, where the first resource pool includes the first time-frequency resource, and the first resource pool is reserved for downlink physical layer signaling.

As a sub-embodiment, the first signaling is high layer signaling, and the second signaling is physical layer signaling.

As a sub-embodiment, the first signaling is physical layer signaling, and the second signaling is physical layer signaling.

As a sub-embodiment, the first time-frequency resource is used to transmit at least one of L signaling, the L is a positive integer, and the L signaling includes the second signaling.

As a sub-embodiment, the second signaling indicates the first time-frequency resource from the first resource pool.

As a sub-embodiment, the second time-frequency resource and the first time-frequency resource partially overlap.

As a sub-embodiment, the second time-frequency resource and the first time-frequency resource are orthogonal (ie, do not overlap at all).

As a sub-embodiment, the second time-frequency resource includes the first time-frequency resource.

As a sub-instance, the first resource pool is reserved for the downlink physical layer signaling, where the first resource pool is preferentially preceded by the former physical layer signaling, downlink physical layer data. Occupied.

As a sub-instance, the first resource pool is reserved for downlink physical layer signaling, that is, the first resource pool can only be occupied by the downlink physical layer signaling.

As a sub-invention, the second signaling may dynamically indicate the first time-frequency resource, so as to ensure that the target time-frequency resource can effectively occupy the remaining time-frequency resources of the first time-frequency resource, thereby improving Resource utilization and spectral efficiency of the system.

As a sub-embodiment, the second signaling is DCI (Downlink Control Information).

As a sub-embodiment, the second signaling includes a CFI (Control Format Indicator).

As a sub-embodiment, the second signaling is transmitted by using a first physical channel, where the first physical channel is used to indicate a time-frequency resource occupied by the DCI in the first time interval.

As a sub-embodiment, the second signaling is transmitted at the first time interval.

As a sub-embodiment, the second signaling includes scheduling information of the first wireless signal, The scheduling information includes {RA (Resource Allocation, Resource Allocation), MCS (Modulation and Coding Scheme), NDI (New Data Indicator), RV (Redundancy Version, Redundancy Version), HARQ process. At least one of the number}.

As a sub-embodiment, the target time-frequency resource is orthogonal to the first time-frequency resource, where the orthogonal means that there is no time or frequency belonging to the target time-frequency resource and the first One time frequency resources.

As a sub-embodiment, the target time-frequency resources are continuous in the frequency domain.

As a sub-embodiment, the target time-frequency resources are discrete in the frequency domain.

As a sub-embodiment, the target time-frequency resource is continuous in the time domain.

As a sub-embodiment, the target time-frequency resource is discrete in the time domain.

As a sub-embodiment, the target time-frequency resource includes R subcarriers in a frequency domain, and the R is a positive integer. As a sub-embodiment, the R is a multiple of 12. As another sub-embodiment, the number of time domain OFDM symbols occupied by any two of the R subcarriers is the same. As another sub-embodiment, the number of time domain OFDM symbols occupied by two subcarriers in the R subcarriers is different.

As a subsidiary embodiment of the foregoing sub-embodiment, when the number of time domain OFDM symbols occupied by two subcarriers in the R subcarriers is different, the allocation of the target time-frequency resource is most flexible.

As a sub-embodiment, the first time-frequency resource is continuous in the frequency domain.

As a sub-embodiment, the first time-frequency resource is discrete in the frequency domain.

As a sub-embodiment, the first time-frequency resource is continuous in the time domain.

As a sub-embodiment, the first time-frequency resource is discrete in the time domain.

As a sub-embodiment, the first time-frequency resource includes H subcarriers in a frequency domain, and the H is a positive integer. As a sub-embodiment, the H is a multiple of 12. As another sub-embodiment, the number of time domain OFDM symbols occupied by any two of the H subcarriers is the same. As another sub-embodiment, the number of time domain OFDM symbols occupied by two subcarriers in the H subcarriers is different.

As a sub-embodiment, the first time-frequency resource belongs to the first time interval in a time domain.

As a sub-embodiment, the time domain resource of the first time-frequency resource is the first time Part of the interval.

As a sub-embodiment, the first time interval includes Q time-domain contiguous OFDM symbols, the OFDM symbols include a cyclic prefix, and the R is a positive integer. As a sub-embodiment, the R is one of {2, 4, 7}.

As a sub-embodiment, the time domain resource of the target time-frequency resource is part of the first time interval.

As a sub-embodiment, the target time-frequency resource is part of the second time-frequency resource.

As a sub-embodiment, the target time-frequency resource is the same as the second time-frequency resource.

As a sub-embodiment, the second time-frequency resource is continuous in the frequency domain.

As a sub-embodiment, the second time-frequency resource is discrete in the frequency domain.

As a sub-embodiment, the second time-frequency resource is continuous in the time domain.

As a sub-embodiment, the second time-frequency resource is discrete in the time domain.

As a sub-embodiment, the second time-frequency resource includes J subcarriers in a frequency domain, and the J is a positive integer. As a sub-embodiment, the J is a multiple of 12. As another sub-embodiment, the number of time domain OFDM symbols occupied by any two of the J subcarriers is the same. As another sub-embodiment, the number of time domain OFDM symbols occupied by two subcarriers in the J subcarriers is different.

As a sub-embodiment, the transport channel corresponding to the first radio signal is a downlink shared channel (DL-SCH, Downlink Shared Channel) mapped in the first time interval.

As a sub-embodiment, the first wireless signal is that the first bit block is sequentially subjected to channel coding, a modulation mapper, a layer mapper, and a precoding. Resource Element Mapper, output after OFDM signal generation. As a sub-embodiment, the first bit block includes one or more TB (Transport Block). As a sub-embodiment, the first bit block is a part of a TB (Transport Block).

As a sub-invention, the configuration of the first resource pool can effectively reduce the signaling head overhead of the first time-frequency resource while ensuring the flexibility of the first time-frequency resource allocation. .

As a sub-embodiment, the first signaling is high layer signaling.

As a sub-embodiment, the first signaling is physical layer signaling.

As a sub-embodiment, the first signaling is physical layer signaling, and the first signaling includes scheduling information of the first wireless signal, where the scheduling information includes {RA, MCS, RV, NDI, HARQ At least one of the process numbers}.

As a sub-embodiment, the first signaling is a DCI.

As a sub-embodiment, the first resource pool is contiguous in the frequency domain.

As a sub-embodiment, the first resource pool is discrete in the frequency domain.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture in accordance with the present application, as shown in FIG. 2 is a diagram illustrating an NR 5G, LTE (Long-Term Evolution, Long Term Evolution) and LTE-A (Long-Term Evolution Advanced) system network architecture 200. The NR 5G or LTE network architecture 200 may be referred to as an EPS (Evolved Packet System) 200 in some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core)/5G-CN (5G-Core Network) , 5G core network) 210, HSS (Home Subscriber Server) 220 and Internet service 230. EPS can be interconnected with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet switching services, although those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks or other cellular networks that provide circuit switched services. The NG-RAN includes an NR Node B (gNB) 203 and other gNBs 204. The gNB 203 provides user and control plane protocol termination for the UE 201. The gNB 203 can be connected to other gNBs 204 via an Xn interface (eg, a backhaul). The gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmission and reception point), or some other suitable terminology. The gNB 203 provides the UE 201 with an access point to the EPC/5G-CN 210. Examples of UEs 201 include cellular telephones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players ( For example, an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, a car, a wearable device, or any other similar functional device. A person skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, Remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or some other suitable term. The gNB203 is connected to the EPC/5G-CN210 through the S1/NG interface. The EPC/5G-CN210 includes an MME/AMF/UPF 211, other MME/AMF/UPF 214, an S-GW (Service Gateway) 212, and a P-GW (Packet Date Network Gateway) 213. The MME/AMF/UPF 211 is a control node that handles signaling between the UE 201 and the EPC/5G-CN 210. In general, MME/AMF/UPF 211 provides bearer and connection management. All User IP (Internet Protocol) packets are transmitted through the S-GW 212, and the S-GW 212 itself is connected to the P-GW 213. The P-GW 213 provides UE IP address allocation as well as other functions. The P-GW 213 is connected to the Internet service 230. The Internet service 230 includes an operator-compatible Internet Protocol service, and may specifically include the Internet, an intranet, an IMS (IP Multimedia Subsystem), and a PS Streaming Service (PSS).

As a sub-embodiment, the UE 201 corresponds to the user equipment in this application.

As a sub-embodiment, the gNB 203 corresponds to a base station in the present application.

As a sub-embodiment, the UE 201 supports dynamic resource sharing of PDCCH and PDSCH.

As a sub-embodiment, the gNB 203 supports dynamic resource sharing of PDCCH and PDSCH.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane in accordance with the present application, as shown in FIG. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane and a control plane, and FIG. 3 shows a radio protocol architecture for user equipment (UE) and base station equipment (gNB or eNB) in three layers: Layer 1 , layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the UE and the gNB through PHY 301. In the user plane, the L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol). Convergence Protocol) Sublayer 304, which terminates at the gNB on the network side. Although not illustrated, the UE may have several upper layers above the L2 layer 305, including a network layer (eg, an IP layer) terminated at the P-GW on the network side and terminated at the other end of the connection (eg, Application layer at the remote UE, server, etc.). The PDCP sublayer 304 provides between different radio bearers and logical channels. Multiplexing. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, provides security by encrypting data packets, and provides handoff support for UEs between gNBs. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between the logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and gNB is substantially the same for the physical layer 301 and the L2 layer 305, but there is no header compression function for the control plane. The control plane also includes an RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer). The RRC sublayer 306 is responsible for obtaining radio resources (ie, radio bearers) and configuring the lower layer using RRC signaling between the gNB and the UE.

As a sub-embodiment, the wireless protocol architecture of Figure 3 is applicable to the user equipment in this application.

As a sub-embodiment, the radio protocol architecture of Figure 3 is applicable to the base station equipment in this application.

As a sub-embodiment, the first signaling in the present application is generated in the RRC 306.

As a sub-embodiment, the first signaling in the present application is generated by the PHY 301.

As a sub-embodiment, the first wireless signal in the present application is generated by the PHY 301.

As a sub-embodiment, the second signaling in the present application is generated by the PHY 301.

As a sub-embodiment, the third signaling in the present application is generated in the RRC 306.

As a sub-embodiment, the third signaling in the present application is generated by the PHY 301.

Example 4

Embodiment 4 shows a schematic diagram of a base station device and a given user equipment according to the present application, as shown in FIG. 4 is a block diagram of a gNB 410 in communication with a UE 450 in an access network.

A controller/processor 490, a memory 480, a receiving processor 452, a transmitter/receiver 456, a transmitting processor 455 and a data source 467 are included in the user equipment (UE 450), and the transmitter/receiver 456 includes an antenna 460. Data source 467 provides an upper layer packet to controller/processor 490, which provides header compression decompression, encryption decryption, packet segmentation and reordering, and multiplexing and demultiplexing between logical and transport channels. Used to implement for user plane and control For a flat L2 layer protocol, the upper layer packet may include data or control information such as DL-SCH or UL-SCH. Transmit processor 455 implements various signal transmission processing functions for the L1 layer (ie, the physical layer) including encoding, interleaving, scrambling, modulation, power control/allocation, precoding, and physical layer control signaling generation. The various signal reception processing functions implemented by the receive processor 452 for the L1 layer (ie, the physical layer) include decoding, deinterleaving, descrambling, demodulation, de-precoding, and physical layer control signaling extraction, and the like. The transmitter 456 is configured to convert the baseband signal provided by the transmit processor 455 into a radio frequency signal and transmit it via the antenna 460. The receiver 456 converts the radio frequency signal received through the antenna 460 into a baseband signal and provides it to the receive processor 452.

A base station device (410) may include a controller/processor 440, a memory 430, a receive processor 412, a transmitter/receiver 416 and a transmit processor 415, and the transmitter/receiver 416 includes an antenna 420. The upper layer packet arrives at the controller/processor 440, which provides header compression decompression, encryption and decryption, packet segmentation and reordering, and multiplexing and demultiplexing between the logical and transport channels to implement L2 layer protocol for user plane and control plane. The upper layer packet may include data or control information such as DL-SCH or UL-SCH. The transmit processor 415 implements various signal transmission processing functions for the L1 layer (ie, the physical layer) including coding, interleaving, scrambling, modulation, power control/allocation, precoding, and physical layer control signaling (including PBCH, PDCCH). , PHICH, PCFICH, reference signal generation, etc., the first signaling in the present application may be generated by the transmitting processor 415 or sent to the controller/processor 440 by the higher layer signaling, and the second signaling in the present application is processed by the transmission. The third signaling in the present application may be generated by the transmitting processor 415 or sent to the controller/processor 440 by higher layer signaling. The various signal reception processing functions implemented by the receive processor 412 for the L1 layer (ie, the physical layer) include decoding, deinterleaving, descrambling, demodulation, de-precoding, and physical layer control signaling extraction, and the like. The transmitter 416 is configured to convert the baseband signal provided by the transmitting processor 415 into a radio frequency signal and transmit it via the antenna 420. The receiver 416 is configured to convert the radio frequency signal received by the antenna 420 into a baseband signal and provide the signal to the receiving processor 412.

In DL (Downlink), the upper layer packet DL-SCH is provided to the controller/processor 440. Controller/processor 440 implements the functionality of the L2 layer. In the DL, the controller/processor 440 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the UE 450 based on various priority metrics. The controller/processor 440 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the UE 450 (first signaling and third signaling in this application). Transmit processor 415 implements various signal processing functions for the L1 layer (ie, the physical layer). Signal processing functions include decoding and interleaving to facilitate forward error correction at the UE 450 (FEC) and modulating the baseband signal based on various modulation schemes (eg, Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK)), dividing the modulation symbols into parallel streams and mapping each stream to Corresponding multi-carrier subcarriers and/or multi-carrier symbols are then transmitted by transmitter 455 via transmitter 456 to antenna 460 in the form of radio frequency signals to form the first wireless signal in the present application. At the receiving end, each receiver 456 receives radio frequency signals through its respective antenna 460, each receiver 456 recovers the baseband information modulated onto the radio frequency carrier and provides baseband information to the receiving processor 452. The receiving processor 452 implements various signal receiving processing functions of the L1 layer. The signal reception processing function includes receiving the first wireless signal on the target time-frequency resource determined in the present application, and then performing multi-carrier symbols in the multi-carrier symbol stream on the target time-frequency resource based on various modulation schemes (eg, binary Demodulation of phase shift keying (BPSK), quadrature phase shift keying (QPSK), followed by decoding and deinterleaving to recover data or control transmitted by the gNB 410 on the physical channel, and then providing data and control signals to the controller / Processor 490. The controller/processor 490 implements the L2 layer. The controller/processor can be associated with a memory 480 that stores program codes and data. Memory 480 can be referred to as a computer readable medium.

As a sub-embodiment, the UE 450 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be Used by the processor, the UE 450 device at least: receiving the first signaling, receiving the second signaling, and receiving the first wireless signal on the target time-frequency resource; wherein the first time-frequency resource and the target time-frequency resource are Orthogonal, or the target time-frequency resource includes the first time-frequency resource; and the second time-frequency resource and the time-frequency resource other than the first time-frequency resource belong to the target time-frequency resource, the second The signaling is used to determine the first time-frequency resource and the second time-frequency resource; the target time-frequency resource belongs to a first time interval in a time domain, and the time length of the first time interval is less than 1 millisecond; The first wireless signal carries a first bit block, the first bit block includes a positive integer number of bits, and the first bit block is transmitted on the target time-frequency resource; the first letter Is used to determine a first pool of resource, the first resource pool comprises the first time-frequency resource, the first resource pool is reserved for the downlink physical layer signaling.

As a sub-embodiment, the UE 450 includes a memory storing a computer readable instruction program that, when executed by at least one processor, generates an action, the action comprising: receiving a first signaling Receiving the second signaling and receiving the first wireless signal on the target time-frequency resource; wherein the first time-frequency resource and the target time-frequency resource are orthogonal, or the target time-frequency resource includes the first Time-frequency resource; the first time-frequency resource in the second time-frequency resource The time-frequency resource other than the target time-frequency resource, the second signaling is used to determine the first time-frequency resource and the second time-frequency resource; the target time-frequency resource belongs to the time domain a first time interval, the time length of the first time interval is less than 1 millisecond; the first wireless signal carries a first bit block, the first bit block includes a positive integer number of bits, and the first bit block is in the Transmitting on the target time-frequency resource; the first signaling is used to determine a first resource pool, the first resource pool includes the first time-frequency resource, and the first resource pool is reserved for downlink physical Layer signaling.

As a sub-embodiment, the gNB 410 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be The processor is used together. The gNB410 device at least: transmitting the first signaling, the second signaling, and transmitting the first wireless signal on the target time-frequency resource; wherein, the first time-frequency resource and the target time-frequency resource are orthogonal, or The target time-frequency resource includes the first time-frequency resource; the second time-frequency resource and the time-frequency resource other than the first time-frequency resource belong to the target time-frequency resource, and the second signaling is used to determine The first time-frequency resource and the second time-frequency resource; the target time-frequency resource belongs to a first time interval in a time domain, and the time length of the first time interval is less than 1 millisecond; the first wireless signal Carrying a first bit block, the first bit block includes a positive integer number of bits, the first bit block is transmitted on the target time-frequency resource; the first signaling is used to determine a first resource pool, The first resource pool includes the first time-frequency resource, and the first resource pool is reserved for downlink physical layer signaling.

As a sub-embodiment, the gNB 410 includes: a memory storing a computer readable instruction program that, when executed by at least one processor, generates an action, the action comprising: transmitting the first signaling Transmitting, by the second signaling, the first radio signal on the target time-frequency resource, where the first time-frequency resource and the target time-frequency resource are orthogonal, or the target time-frequency resource includes the first time a frequency resource; the time-frequency resource in the second time-frequency resource and outside the first time-frequency resource belongs to the target time-frequency resource, and the second signaling is used to determine the first time-frequency resource and the first a second time-frequency resource; the target time-frequency resource belongs to a first time interval in a time domain, and the time length of the first time interval is less than 1 millisecond; the first wireless signal carries a first bit block, the first bit The block includes a positive integer number of bits, the first bit block being transmitted on the target time-frequency resource; the first signaling is used to determine a first resource pool, and the first resource pool includes the first time Frequency resource, the first Source pool is reserved for the downlink physical layer signaling.

As a sub-embodiment, the UE 450 corresponds to the user equipment in this application.

As a sub-embodiment, gNB 410 corresponds to the base station in this application.

As a sub-embodiment, receiver 456 (including antenna 460), at least two of receive processor 452 and controller/processor 490 are used to receive the first signaling in this application.

As a sub-embodiment, receiver 456 (including antenna 460) and receive processor 452 are used to receive the second signaling in this application.

As a sub-embodiment, receiver 456 (including antenna 460), at least two of receive processor 452 and controller/processor 490 are used to receive the third signaling in this application.

As a sub-embodiment, receiver 456, receive processor 452 and controller/processor 490 are used in the present application to receive the first wireless signal.

As a sub-embodiment, at least two of transmitter 416 (including antenna 420), transmit processor 415, and controller/processor 440 are used to transmit the first signaling in this application.

As a sub-embodiment, transmitter 416 (including antenna 420) and transmit processor 415 are used to transmit the second signaling in this application.

As a sub-embodiment, at least two of transmitter 416 (including antenna 420), transmit processor 415, and controller/processor 440 are used to transmit the third signaling in this application.

As a sub-embodiment, transmitter 416 (including antenna 420), transmit processor 415 and controller/processor 440 are used to transmit the first wireless signal in this application.

Example 5

Embodiment 5 exemplifies a wireless signal downlink transmission flowchart, as shown in FIG. In Figure 5, base station N1 is the maintenance base station of the serving cell of UE U2, and the steps identified in block F1 are optional.

For the base station N1 , the third signaling is transmitted in step S11, the first signaling is transmitted in step S12, the second signaling is transmitted in step S13, the second bit block is determined in step S14, and the second bit is transmitted in step S15. A wireless signal.

For UE U2 , the third signaling is received in step S21, the first signaling is received in step S22, the second signaling is received in step S23, and the first wireless signal is received in step S24.

In Embodiment 5, the first wireless signal occupies a target time-frequency resource, the first time-frequency resource and the target time-frequency resource are orthogonal, or the target time-frequency resource includes the first time-frequency resource And the second time-frequency resource and the time-frequency resource other than the first time-frequency resource belong to the target time-frequency resource, and the second signaling is used to determine the first time-frequency resource and the second time a frequency resource; the target time-frequency resource belongs to a first time interval in a time domain, and the time length of the first time interval is less than 1 millisecond; the first wireless signal carries a first bit block, The first bit block includes a positive integer number of bits; the first signaling is used to determine a first resource pool, the first resource pool includes the first time-frequency resource, and the first resource pool is reserved for Downlink physical layer signaling. The third signaling is used to determine a frequency domain resource occupied by the first time interval. The second block of bits is generated by channel coding of the first block of bits, the second block of bits comprising a positive integer number of bits.

As a sub-embodiment, the second signaling is transmitted through DCI (Downlink Control Information).

As a sub-embodiment, the first signaling is transmitted through an RRC (Radio Resource Control).

As a sub-embodiment, the third signaling is transmitted through DCI.

As a sub-embodiment, the transport channel corresponding to the first radio signal is a downlink shared channel (DL-SCH, Downlink Shared Channel) mapped to the target time interval.

As a sub-embodiment, the first bit block generates a second bit block by channel coding rate matching (Rate Matching) to the target time-frequency resource.

As a sub-embodiment, the first bit block is subjected to channel coding puncturing to the target time-frequency resource to generate a second bit block.

Example 6

Embodiment 6 exemplifies a first time-frequency resource diagram, as shown in FIG. In FIG. 6, the horizontal axis represents the time vertical axis represents the frequency, the largest rectangular area identifies the first time-frequency resource, and the first time-frequency resource transmits at least one of the L signalings, and the rectangles marked with numbers respectively identify The time-frequency resources occupied by the signaling included in the first time-frequency resource, the L is a positive integer, and the second signaling is one of the L signalings. .

As a sub-embodiment, the time-frequency resource size occupied by the L signalings is phase The same.

As a sub-embodiment, the time-frequency resources occupied by the two signalings in the time-frequency resources occupied by the L signaling are different.

As a sub-embodiment, the L signaling is transmitted through DCI.

As a sub-embodiment, the first time-frequency resource includes a time-frequency resource occupied by the second signaling.

As a sub-invention, the first time-frequency resource includes a time-frequency resource other than the time-frequency resource occupied by the second signaling in the time-frequency resource occupied by the L signaling.

Example 7

Embodiment 7 exemplifies a relationship between a target time-frequency resource and a first time-frequency resource, as shown in FIG. In FIG. 7, the inner squares represent the first time-frequency resource and the target time-frequency resource, respectively. The duration of the first time interval is less than 1 millisecond.

In Embodiment 7, the first time-frequency resource is orthogonal to the target time-frequency resource, where the orthogonal means that there is no RU and belongs to the target time-frequency resource and the first time Frequency resources. The RU occupies one subcarrier in the frequency domain and occupies the duration of one OFDM symbol in the time domain.

As a sub-embodiment, the time domain resource of the first time-frequency resource is part of the first time interval.

As a sub-embodiment, the target time-frequency resource belongs to the first time interval in the time domain.

Example 8

Embodiment 8 illustrates a schematic diagram of a target time-frequency resource and a second time-frequency resource, as shown in FIG. In FIG. 8, the square of the thin line represents the target time-frequency resource, and the square of the thick line frame represents the second time-frequency resource.

As a sub-embodiment, the target time-frequency resource is among the second time-frequency resources and the first Time-frequency resources other than one-time-frequency resources.

As a sub-embodiment, the first signaling includes scheduling information of the first wireless signal, and the scheduling information includes at least one of {RA, MCS, NDI, RV, HARQ process number}. The second time-frequency resource is indicated by the RA.

Example 9

Embodiment 9 illustrates a schematic diagram of a relationship between a first resource pool and a first time-frequency resource, as shown in FIG. In FIG. 9 , the thin-line grid corresponds to the first time-frequency resource, the square frame identified by the thick-line box corresponds to the first resource pool, and the first resource pool includes the first time-frequency resource, and the first resource pool Indicated by the first signaling. The first resource pool is discrete in the time domain.

As a sub-embodiment, the first signaling is RRC signaling.

Example 10

Embodiment 10 exemplifies a structural block diagram of a processing device in a user equipment, as shown in FIG. In FIG. 10, the user equipment processing apparatus 1000 is mainly composed of a first receiving module 1001, a second receiving module 1002, and a third receiving module 1003. The first receiving module 1001 includes the receiver 456 (including the antenna 460) in FIG. 4 of the present application, the receiving processor 452, and the controller/processor 490. The second receiving module 1002 includes the receiver 456 in FIG. 4 of the present application. (including antenna 460) and receiving processor 452; third receiving module 1003 includes receiver 456 (including antenna 460) in FIG. 4 of the present application, receiving processor 452, controller/processor 490.

The first receiving module 1001 receives the first signaling and the third signaling; the second receiving module 1002 receives the second signaling; and the third receiving module 1003 receives the first wireless signal on the target time-frequency resource.

In the embodiment 10, the first time-frequency resource and the target time-frequency resource are orthogonal, or the target time-frequency resource includes the first time-frequency resource; and the second time-frequency resource and the first time-frequency resource The time-frequency resource other than the target time-frequency resource, the second signaling is used to determine the first time-frequency resource and the second time-frequency resource; the target time-frequency resource belongs to the time domain a first time interval, the time length of the first time interval is less than 1 millisecond; the first wireless signal carries a first bit block, the first bit block includes a positive integer number of bits, and the first bit block is in the Transmitting on the target time-frequency resource; the first signaling is used to determine a first resource pool, the first resource pool includes the first time-frequency resource, and the first resource pool is reserved for downlink physical Layer signaling. The third signaling is used to determine a frequency domain resource occupied by the first time interval, where the target time-frequency resource, the first time-frequency resource, and the second time-frequency resource are in the frequency domain. The frequency domain resources occupied by the first time interval.

As a sub-invention, the second signaling indicates whether the target time-frequency resource includes the first time-frequency resource, and the first time-frequency resource is the first resource pool and the second time-frequency The public part of the resource.

As a sub-embodiment, the second signaling is used to determine a first time-frequency pattern from a P time-frequency pattern, the P is a positive integer, and the first time-frequency pattern is the first time-frequency The time-frequency location of the resource in the first resource pool is distributed; the P time-frequency pattern is predefined, or the P-time time-frequency pattern is configurable.

As a sub-embodiment, the second signaling is transmitted through the DCI, and the first signaling received by the second receiving module 1001 is transmitted through RRC, and the third signaling is transmitted through DCI.

As a sub-embodiment, the first wireless signal is a first bit block sequentially subjected to channel coding, a modulation mapper, a layer mapper, a precoding, and a resource particle. Resource Element Mapper, output after OFDM signal generation. As a sub-embodiment, the first bit block includes one or more TB (Transport Block).

Example 11

Embodiment 11 exemplifies a structural block diagram of a processing device in a base station device, as shown in FIG. In FIG. 11, the base station processing apparatus 1100 is mainly composed of a first transmitting module 1101, and a second The sending module 1102 and the third sending module 1103 are composed. The first transmitting module 1101 includes the transmitter 416 (including the antenna 420) in FIG. 4 of the present application, the transmitting processor 415, and the controller/processor 440. The second transmitting module 1102 includes the transmitter 416 in FIG. 4 of the present application. (including antenna 420) and transmit processor 415; third transmit module 1103 includes transmitter 416 (including antenna 420), transmit processor 415, and controller/processor 440 of FIG. 4 of the present application.

The first sending module 1101 sends the first signaling; the second sending module 1102 sends the second signaling; and the third sending module 1103 sends the first wireless signal on the target time-frequency resource.

In the embodiment 11, the target time-frequency resource includes a time-frequency resource in the second time-frequency resource and outside the first time-frequency resource, and the second signaling indicates, {whether the target time-frequency resource includes the first a first time-frequency resource, the second time-frequency resource, wherein the first time-frequency resource is a common part of the first resource pool and the second time-frequency resource. The target time-frequency resource belongs to the first time interval in the time domain, and the time length of the first time interval is less than 1 millisecond. The first wireless signal carries a first block of bits, the first block of bits includes a positive integer number of bits, and the first block of bits is transmitted on the target time-frequency resource. The first signaling is used to determine a first resource pool, and the first resource pool includes the first time-frequency resource. The first resource pool is reserved for downlink physical layer signaling.

As a sub-embodiment, the third transmitting module 1103 further determines a second bit block, the second bit block is generated by channel coding by the first bit block, and the second bit block includes a positive integer number of bits.

As a subsidiary embodiment of the foregoing sub-embodiment, the second bit block is that the first bit block is subjected to channel coding rate matching (Rate Matching) to the target time-frequency resource generation.

As another subsidiary embodiment of the foregoing sub-embodiment, the second bit block is that the first bit block is subjected to channel coding puncturing to the target time-frequency resource generation.

As a sub-embodiment, the first sending module 1101 further sends a third signaling, The third signaling is used to determine a frequency domain resource occupied by the first time interval, where the target time-frequency resource, the first time-frequency resource, and the second time-frequency resource belong to the frequency domain The frequency domain resource occupied by the first time interval.

As a sub-embodiment, the second signaling is DCI, the first signaling is RRC signaling, and the third signaling is DCI.

One of ordinary skill in the art can appreciate that all or part of the above steps can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium such as a read only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiment may be implemented in hardware form or in the form of a software function module. The application is not limited to any specific combination of software and hardware. The UE or the terminal in the present application includes, but is not limited to, a wireless communication device such as a mobile phone, a tablet computer, a notebook, an internet card, a low power consumption device, and an in-vehicle communication device. The base station or network side device in this application includes but is not limited to a wireless communication device such as a macro cell base station, a micro cell base station, a home base station, and a relay base station.

The above is only the preferred embodiment of the present application and is not intended to limit the scope of the present application. Any modifications, equivalents, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims

A method for use in a UE with low latency, wherein:

Receiving first signaling;

Receiving second signaling;

Receiving a first wireless signal on a target time-frequency resource;

The first time-frequency resource and the target time-frequency resource are orthogonal, or the target time-frequency resource includes the first time-frequency resource; and the second time-frequency resource is other than the first time-frequency resource. The time-frequency resource belongs to the target time-frequency resource, and the second signaling is used to determine the first time-frequency resource and the second time-frequency resource; the target time-frequency resource belongs to the first time in the time domain. An interval, the length of time of the first time interval is less than 1 millisecond; the first wireless signal carries a first bit block, the first bit block includes a positive integer number of bits, and the first bit block is at the target Transmitting on a frequency resource; the first signaling is used to determine a first resource pool, the first resource pool includes the first time-frequency resource, and the first resource pool is reserved for downlink physical layer signaling .
The method according to claim 1, wherein the second signaling indicates whether the target time-frequency resource includes the first time-frequency resource, and the first time-frequency resource is the first resource pool And a common part of the second time-frequency resource.
The method according to any one of claims 1 or 2, wherein said second signaling is used to determine a first time-frequency pattern from P time-frequency patterns, said P being a positive integer, The first time-frequency pattern is a time-frequency position distribution of the first time-frequency resource in the first resource pool; the P-type time-frequency pattern is predefined, or the P-time time-frequency pattern is Configurable.
The method of any one of claims 1, 2 or 3, further comprising:

Receiving third signaling;

The third signaling is used to determine a frequency domain resource occupied by the first time interval, where the target time-frequency resource, the first time-frequency resource, and the second time-frequency resource are in frequency. The domain belongs to the frequency domain resource occupied by the first time interval.
A method for use in a base station with low latency, comprising:

- transmitting second signaling;

- transmitting the first signaling;

- transmitting the first wireless signal on the target time-frequency resource;

The first time-frequency resource and the target time-frequency resource are orthogonal, or the target time-frequency resource includes the first time-frequency resource; and the second time-frequency resource is other than the first time-frequency resource. Time-frequency resource For the target time-frequency resource, the second signaling is used to determine the first time-frequency resource and the second time-frequency resource; the target time-frequency resource belongs to a first time interval in a time domain, The first time interval is less than 1 millisecond; the first wireless signal carries a first bit block, the first bit block includes a positive integer number of bits, and the first bit block is on the target time-frequency resource Transmitting; the first signaling is used to determine a first resource pool, the first resource pool includes the first time-frequency resource, and the first resource pool is reserved for downlink physical layer signaling.
The method according to claim 5, wherein the second signaling indicates whether the target time-frequency resource includes the first time-frequency resource, and the first time-frequency resource is the first resource pool And a common part of the second time-frequency resource.
The method according to any one of claims 5 or 6, wherein the second signaling is used to determine a first time-frequency pattern from a P time-frequency pattern, the P being a positive integer. The first time-frequency pattern is a time-frequency position distribution of the first time-frequency resource in the first resource pool; the P-type time-frequency pattern is predefined, or the P-time time-frequency pattern is Configurable.
The method of any of claims 5, 6 or 7 further comprising:

- transmitting third signaling;

The third signaling is used to determine a frequency domain resource occupied by the first time interval, where the target time-frequency resource, the first time-frequency resource, and the second time-frequency resource are in a frequency domain. All belong to the frequency domain resource occupied by the first time interval.
The method according to any one of claims 5 to 8, further comprising:

- determining a second block of bits;

The second bit block is generated by channel coding by the first bit block, and the second bit block includes a positive integer number of bits.
A user equipment that is used for low latency, including:

- a first receiving module, receiving the first signaling;

a second receiving module receiving the second signaling;

a third receiving module, receiving the first wireless signal on the target time-frequency resource;

The first time-frequency resource and the target time-frequency resource are orthogonal, or the target time-frequency resource includes the first time-frequency resource; and the second time-frequency resource is other than the first time-frequency resource. The time-frequency resource belongs to the target time-frequency resource, and the second signaling is used to determine the first time-frequency resource and the second time-frequency resource; the target time-frequency resource belongs to the first time in the time domain. Interval, the first time The length of the interval is less than 1 millisecond; the first wireless signal carries a first block of bits, the first block of bits includes a positive integer number of bits, and the first block of bits is transmitted on the target time-frequency resource; The first signaling is used to determine a first resource pool, the first resource pool includes the first time-frequency resource, and the first resource pool is reserved for downlink physical layer signaling.
The user equipment according to claim 10, wherein the first receiving module further receives third signaling, where the third signaling is used to determine a frequency domain resource occupied by the first time interval, The target time-frequency resource, the first time-frequency resource, and the second time-frequency resource are all in the frequency domain and belong to the frequency domain resource occupied by the first time interval.
A base station device used for low latency, including:

- a first sending module, transmitting the first signaling;

a second transmitting module that transmits the second signaling;

a third transmitting module, transmitting the first wireless signal on the target time-frequency resource;

The first time-frequency resource and the target time-frequency resource are orthogonal, or the target time-frequency resource includes the first time-frequency resource; and the second time-frequency resource is other than the first time-frequency resource. The time-frequency resource belongs to the target time-frequency resource, and the second signaling is used to determine the first time-frequency resource and the second time-frequency resource; the target time-frequency resource belongs to the first time in the time domain. An interval, the length of time of the first time interval is less than 1 millisecond; the first wireless signal carries a first bit block, the first bit block includes a positive integer number of bits, and the first bit block is at the target Transmitting on a frequency resource; the first signaling is used to determine a first resource pool, the first resource pool includes the first time-frequency resource, and the first resource pool is reserved for downlink physical layer signaling .
The base station device according to claim 12, wherein the first sending module further sends third signaling, where the third signaling is used to determine a frequency domain resource occupied by the first time interval, The target time-frequency resource, the first time-frequency resource, and the second time-frequency resource are all in the frequency domain and belong to the frequency domain resource occupied by the first time interval.
The base station device according to any one of claims 12 or 13, wherein the third transmitting module further determines a second bit block, wherein the second bit block is passed by the first bit block through a channel Encoding is generated, the second block of bits comprising a positive integer number of bits.